freebsd-dev/sys/netinet/icmp_var.h
Garrett Wollman 7022ea0a0c Configurably don't reply to broadcast or multicast echos. There are still
potential problems with other automatic-reply ICMPs, but some of them may
depend on broadcast/multicast to operate.  (This code can simply be
moved to the `reflect' label to generalize it.)
1997-08-25 01:25:31 +00:00

78 lines
3.1 KiB
C

/*
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)icmp_var.h 8.1 (Berkeley) 6/10/93
* $Id: icmp_var.h,v 1.6 1997/02/22 09:41:24 peter Exp $
*/
#ifndef _NETINET_ICMP_VAR_H_
#define _NETINET_ICMP_VAR_H_
/*
* Variables related to this implementation
* of the internet control message protocol.
*/
struct icmpstat {
/* statistics related to icmp packets generated */
u_long icps_error; /* # of calls to icmp_error */
u_long icps_oldshort; /* no error 'cuz old ip too short */
u_long icps_oldicmp; /* no error 'cuz old was icmp */
u_long icps_outhist[ICMP_MAXTYPE + 1];
/* statistics related to input messages processed */
u_long icps_badcode; /* icmp_code out of range */
u_long icps_tooshort; /* packet < ICMP_MINLEN */
u_long icps_checksum; /* bad checksum */
u_long icps_badlen; /* calculated bound mismatch */
u_long icps_reflect; /* number of responses */
u_long icps_inhist[ICMP_MAXTYPE + 1];
u_long icps_bmcastecho; /* b/mcast echo requests dropped */
};
/*
* Names for ICMP sysctl objects
*/
#define ICMPCTL_MASKREPL 1 /* allow replies to netmask requests */
#define ICMPCTL_STATS 2 /* statistics (read-only) */
#define ICMPCTL_MAXID 3
#define ICMPCTL_NAMES { \
{ 0, 0 }, \
{ "maskrepl", CTLTYPE_INT }, \
{ "stats", CTLTYPE_STRUCT }, \
}
#ifdef KERNEL
extern struct icmpstat icmpstat;
#endif
#endif